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INCOME TAXES - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Income Tax Disclosure [Abstract]          
Income tax benefit $ 726 $ 1,232 $ 2,829 $ 2,246  
Effective tax rate 17.40% 19.40% 22.60% 19.80%  
Unrecognized tax benefits $ 300   $ 300   $ 300